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    Method for single-stage treatment of siliceous subterranean formations
    4.
    发明授权
    Method for single-stage treatment of siliceous subterranean formations 有权
    硅质地层单层处理方法

    公开(公告)号：US08312929B2

    公开(公告)日：2012-11-20

    申请号：US12019394

    申请日：2008-01-24

    申请人： Wayne W. Frenier ,  Diankui Fu ,  Stephen Nigel Davies ,  Murtaza Ziauddin ,  Zhijun Xiao ,  Bruno Lecerf ,  Helene Bulte

    发明人： Wayne W. Frenier ,  Diankui Fu ,  Stephen Nigel Davies ,  Murtaza Ziauddin ,  Zhijun Xiao ,  Bruno Lecerf ,  Helene Bulte

    IPC分类号： E21B43/28

    CPC分类号： C09K8/74

    摘要： In a method of treating a sandstone-containing formation penetrated by a wellbore, a treatment fluid comprising an aqueous fluid containing a Bronsted acid, a hydrogen fluoride source and an organic acid or salt thereof that is substantially soluble in the aqueous fluid is formed. The treatment fluid contains less than about 2% of fluoride (F−) by weight of the fluid and from 2% or less of sodium (Na+) by weight of the fluid. The treatment fluid is introduced into the formation through the wellbore as a single-stage without introducing an acid-containing fluid preflush into the formation prior to introducing the treatment fluid.

    摘要翻译： 在处理由井眼渗透的含砂岩地层的方法中，形成包含基本上可溶于水性流体的含有布朗斯台德酸，氟化氢源及其有机酸或其盐的含水流体的处理流体。 处理液含有少于约2％的流体重量的氟化物（F-），和流体重量的2％或更少的钠（Na +）。 在引入处理流体之前，将处理流体作为单阶段通过井筒引入地层，而不将酸含量的流体预吹入地层中。

    Viscoelastic acid
    6.
    发明授权
    Viscoelastic acid 有权
    粘弹性酸

    公开(公告)号：US07341107B2

    公开(公告)日：2008-03-11

    申请号：US11006004

    申请日：2004-12-07

    申请人： Diankui Fu ,  Marieliz Garcia-Lopez De Victoria

    发明人： Diankui Fu ,  Marieliz Garcia-Lopez De Victoria

    IPC分类号： C09K8/68 ,  C09K8/74

    CPC分类号： C09K8/74 ,  C09K2208/30

    摘要： An acidic viscoelastic surfactant fluid composition is formulated with an acid, for example hydrochloric acid, a cationic surfactant, for example a quaternary amine, and a break-enabling salt, for example NH4Cl. The fluid composition has low viscosity as formulated, undergoes an increase in viscosity as the acid is consumed when it reacts with an acid-reactive material, and returns to approximately the initial viscosity as the last of the acid is consumed. The fluid composition is used as a diverting fluid or as the main treatment fluid in oilfield treatments such as matrix acidizing and acid fracturing.

    摘要翻译： 酸性粘弹性表面活性剂流体组合物与酸（例如盐酸），阳离子表面活性剂（例如季胺）和能使裂解的盐例如NH 4 Cl配制。 流体组合物具有如下配制的低粘度，当酸与酸反应性材料反应时消耗酸，粘度增加，并随着酸的最后消耗而恢复到大致的初始粘度。 流体组合物用作转移流体或作为油田处理中的主要处理流体，例如基质酸化和酸压裂。

    Reservoir treatment fluids
    7.
    发明授权
    Reservoir treatment fluids 有权
    水库处理液

    公开(公告)号：US06903054B2

    公开(公告)日：2005-06-07

    申请号：US10231569

    申请日：2002-08-30

    申请人： Diankui Fu ,  Marieliz Garcia-Lopez de Victoria

    发明人： Diankui Fu ,  Marieliz Garcia-Lopez de Victoria

    IPC分类号： C09K8/60 ,  C09K8/74 ,  C09K8/78 ,  C09K3/00

    CPC分类号： C09K8/74 ,  C09K8/602 ,  C09K8/78

    摘要： A method of treating a hydrocarbon-containing formation is disclosed. The method includes injecting a well treating fluid into a well, wherein the well treating fluid includes a self-diverting acid that includes about 1% to 30% by weight of at least one acid selected from the group consisting of hydrochloric acid, sulfuric acid, phosphoric acid, formic acid, acetic acid, citric acid, maleic acid, hydrofluoric acid and mixtures thereof; and about 1% to 20% by volume of at least one viscoelastic surfactant selected from a family of compounds described by where R3 contains at least 10 carbon atoms, p=1-6, R2 contains 1-6 carbon atoms and R1 contains 1-6 carbon atoms; and about 0.7% to 20% by weight scale inhibitor.

    摘要翻译： 公开了一种处理含烃地层的方法。 该方法包括将井处理流体注入井中，其中井处理流体包括自转向酸，其包含约1重量％至30重量％的至少一种选自盐酸，硫酸， 磷酸，甲酸，乙酸，柠檬酸，马来酸，氢氟酸及其混合物; 和约1体积％至20体积％的至少一种粘弹性表面活性剂，其选自由其中R 3至少含有10个碳原子的化合物族群，p = 1-6， 2 含有1-6个碳原子，R 1包含1-6个碳原子; 和约0.7重量％至20重量％的阻垢剂。

    Fluids and techniques for matrix acidizing
    8.
    发明授权
    Fluids and techniques for matrix acidizing 有权
    用于基质酸化的流体和技术

    公开(公告)号：US06350721B1

    公开(公告)日：2002-02-26

    申请号：US09203301

    申请日：1998-12-01

    申请人： Diankui Fu ,  Roger J. Card

    发明人： Diankui Fu ,  Roger J. Card

    IPC分类号： C09K300

    CPC分类号： C09K8/86 ,  C09K8/72 ,  Y10S507/933

    摘要： Liquids comprised solely of anions and cations (“ionic liquids”) are disclosed as novel components of fluids (and techniques relying upon those fluids) for stimulation of hydrocarbon wells. In particular, the fluids disclosed are useful in matrix acidizing. Formation of the ionic liquids of the present Invention is highly exothermic, hence the heat generated can be used, for instance, to melt de-watered drilling fluid in the near-wellbore region of the formation. Further, reaction of the ionic liquids with water results in acid generation; this acid can be used to, for instance, to stimulate a formation, either by conventional matrix acidizing or fracture acidizing. In addition, certain preferred species of the ionic liquids of the present Invention are highly stable solvents, hence they can be used as carrier fluids for highly reactive super acids (e.g., SbF5+HF) in connection with matrix acidizing.

    摘要翻译： 公开了仅由阴离子和阳离子（“离子液体”）组成的液体作为用于刺激烃井的流体（和依赖于这些流体的技术）的新组件。 特别地，所公开的流体可用于基质酸化。 本发明的离子液体的形成是高度放热的，因此所产生的热可用于例如在地层的近井筒区域熔化脱水钻井液。 此外，离子液体与水的反应导致产生酸; 该酸可用于例如通过常规的基质酸化或断裂酸化来刺激形成。 此外，本发明的某些优选种类的离子液体是高度稳定的溶剂，因此它们可以用作与基质酸化有关的高反应性超强酸（例如SbF 5 + HF）的载体流体。